Everything has a huge opportunity cost. You’re giving up alternatives for every choice you make. Lowering variance of high impact attacks has value if you choose to play that way. Missing can turn a battle.
It doesn’t have to be useful to every choice of every build to have its existence justified. There are plenty of choices of spells, equipment, etc that I can look at and tell you “I’ll play 20 different times 20 different ways and never be tempted to use that once”. That’s perfectly fine.
I get them. I don’t always answer.
I tend not to get along well with the kind of people who think I have to drop everything to respond to them, so it’s fine.